Hello and welcome to LIVE coverage of this fourth round match between German 15th seed Andrea Petkovic and Russian 25th seed Maria Kirilenko

So German 15th seed Andrea Petkovic is through to the quarter-finals where she will face Maria Sharpaova. That should be an interesting clash

PETKOVIC 6-2 2-6 6-4 - GAME, SET & MATCH - Petkovic squanders a first match point with an off-balance forehand into the net. But she does reach the quarter-finals at the second attempt with a huge first serve that Kirilenko can only return wide off the forehand wing

PETKOVIC 6-2 2-6 5-4 - BREAK - After all that hard work to get back into this final set, Kirilenko concedes her serve with a forehand wide down the line and Petkovic, a break up once again, will serve for the match after the change of ends

PETKOVIC 6-2 2-6 4-4 - BREAK - Both of these players are putting in a huge amount of effort now as they batter every ball that comes towards them. A double fault doesn't help Petkovic though and she goes on to concede her break advantage with a forehand into the net

PETKOVIC 6-2 2-6 4-3 - Petkovic holds to consolidate the break before Kirilenko also goes on to hold and remain just the one break down and keep the pressure on the German

PETKOVIC 6-2 2-6 3-2 - BREAK - All that beating herself up seems to have done Petkovic some good as she breaks with a forehand winner to leaves herself in charge of this match once again

PETKOVIC 6-2 2-6 1-2 - Petkovic holds when Kirilenko hits into the net but the German is furious with herself after the next game, a Kirilenko hold and is slapping her thigh with a water bottle at the change of ends

PETKOVIC 6-2 2-6 0-1 - Kirilenko holds for the opening game of the final set and she is looking the more composed of the two at this stage

PETKOVIC 6-2 2-6 - SET - Petkovic sends a forehand long of the baseline to hand Kirilenko a first set point. And its a set point that Kirilenko takes full advantage of, peppering the baseline with a series of ground-strokes until Petkovic breaks down and hits into the net. This one is going to a decider

PETKOVIC 6-2 2-5 - Petkovic holds for another game but so does Kirilenko, as Petkovic fires a forehand into the bottom of the net, and the Russian is just one game away from levelling this clash. Petkovic will have to serve to stay in it

PETKOVIC 6-2 1-4 - Kirilenko fires down another cracking first serve that Petkovic can only pull back low into the net and that's another hold for the Russian

PETKOVIC 6-2 1-3 - Petkovic gets off the mark in this second set, holding without too much trouble and sealing the game with a forehand

PETKOVIC 6-2 0-3 - Kirilenko posts a great service hold to consolidate the break, some huge cross court hitting from the Russian doing the damage as Petkovic eventually hits into the net

PETKOVIC 6-2 0-2 - BREAK - Kirilenko unleashes a vicious cross court forehand that a flailing Petkovic simply cannot get to and that's an early break for the Russian in this second set

PETKOVIC 6-2 0-1 - Kirilenko holds for the opening game of the second set, sealing the hold when Petkovic batters a forehand return of serve well long of the baseline

Kirilenko has gone off court for a comfort break during the change of ends and Petkovic is having a spot of treatment to her right hand. She had some tape on her index finger, presumably to protect a blister, and it looks as though she just wanted that tape adjusting

PETKOVIC 6-2 - SET - Petkovic squanders a first set point with a backhand well wide across court and a second with a forehand error. But an ace brings up a third chance for the German and she hold to take the set with another great serve that Kirilenko can only return into the net

PETKOVIC 5-2 - BREAK - Ouch! After all that hard work in the previous game to et one of the breaks back, Kirilenko hands all the initiative back to the German as she slaps down a double fault to concede her serve. The German will serve for the set after the change of ends

PETKOVIC 4-2 - BREAK - Kirilenko gets one of the breaks back with a forehand down the lne that Petkovic can only return well wide across court

PETKOVIC 4-1 - BREAK - A slightly wild backhand from Kirilenko hands Petkovic another break to 30 and surely this is the first set gone now for the Russian